@Test
  public void containsLinks() throws Exception {
    Element inc = document.findLinkByLabel("inc");
    assertEquals("Inc has bad url", "?value=256", inc.getAttribute("href"));

    Element dec = document.findLinkByLabel("dec");
    assertEquals("Dec has bad url", "?value=254", dec.getAttribute("href"));
  }
 @Test
 public void defaultValueIsZero() throws Exception {
   document = new Counter(null).toHtmlDocument();
   assertEquals("0x0", document.findElementById("display").contentsAsText());
 }
 @Test
 public void containsDisplay() throws Exception {
   Element display = document.findElementById("display");
   assertEquals("Display shows wrong value", "0xff", display.contentsAsText());
 }